Apparatus for making prepared building products



June 21, 1932.

T. RosmsoN APPARATUS FOR MAKING PREPARED. BUILDING PRODUCTS OriginalFiled June 19,, 1928 2 Sheets-Sheet 1 m il, A'f'TORNEYi I June 21, 1932.ROBINSON 1,863,880

APPARATUS FOR MAKING PREPARED BUILDING PRODUCTS Original Filed June 19,1928 2 Sheets-Sheet 2 ATTORNEY Patented June 21, 1932 UNITED STATESPATENT OFFICE THOMAS ROBINSON, OF NEW YORK, N. Y., ASSIGNOR TO LANCASTERASPHALT, IN 0., OF

NEW YORK, N. Y A CORPORATION OF DELAWARE APPARATUS FOR MAKING- PREPAREDBUILDING PRODUCTS Original application filed June 19, 1928, Serial Rm286,502. Divided and this application filed July 18,

1928. Serial This invention relates to apparatus for making buildingproducts capable of withstanding exposure to the elements and providinga water-proof structure, such that the products may be employed forroofing, siding, and 'other similar purposes. More particularly, theinvention is concerned with appara tusfor producing the new buildingmaterial set forth and claimed in my co-pending application, Serial No.286,502, filed June 19, 1928, of which the present application is adivision. The product disclosed in that application may be made invarious shapes and forms for different uses by means of this ap- 16paratus, but as the material is of particular utility andafi'ordsimportant advantages for roofing purposes, a-form of theapparatus for producing the material in a shape suitable for thatpurpose will be described by way of 20 illustration.

Prepared roofing now widely used in place of slate, wood shingles andthe like, has numerous advantages and some disadvantages. It is cheaperthan wood shingles, more resistant to fire and of at least equaldurability, but one of the usual components of such roofing is rag feltwhich is relatively expensive. This felt forms the basis of the materialand it is customarily saturated and coated with bituminous substancessuch as asphalt and then given a wear surface of crushed slate, etc. Asthe felt, even in the heaviest and most expensive grades is relativelythin, a roofing element with a felt base is likewise thin and theexposed butt does not cast any considerableshadow so that the appearanceof a roof laid with these elements is less attractive than that of awood shingle or tile roof. Furthermore, the felt which represents thegreatest item of'expense in the manufacture of this roofing is itselfthe least durable part and in the course of time, the felt deterioratesand rots due to exposure to the weather the edges of the elements warpand curl ma ing them unsightly and sometimes causin leaks, and in thecourse of time, the felt d1sintegrates. The present invention isdirected to the provision of apparatus by which the novel roofingmaterial of the prior application may be made at a lower cost thanprepared roofing that base is a hardened mastic protected and sand andother similar substances.

which employs felt as a foundation member or base. This apparatus issuitable for the production of this material in different shapes andsizes and in particular in the form of thick butt shingles. The newproduct which this apparatus 1s adapted to make represents a departurefrom hitherto accepted practice in that, while felt or similar materialis employed, it is not used as the base or body, but

preferably wholly enclosed in a jacket of thin sheet material which maybe felt of a weight much less than that used in ordinary commercialroofing.

The mastic I prefer to use to form the core or base of the new productis a mixture in suitable proportions of a bituminous compound suchasasphalt, and granular material or grit, such as crushed rock, crushedslate, In some instances, it may be desirable to use infusorial earth,asbestos sand, fibrousasbestos and the like in addition to or in placeof the granular material, to produce articles of different weights andother characteristics, and these ingredients are satisfactory for suchspeclal pur oses. This mastic core is enclosed who y orhi part byfibrous sheets, preferably rag felt, which is not saturated except as anincident to other operations. These sheets form a jacket for the core,adding to its strength and durability, defining its shape and carryingthe gritty wear material afiixed thereto by a suitable adhesive such asan asphalt coating.

The apparatus of the present invention comprises means by which a web ofunsaturated felt is drawn from a supply and given a coating of asphaltor the like on one surface. In the ordinar roofing machines, such feltis saturated wit a low melt point asphalt before any. other operation isperformed on it, and after this, the felt is cooled and a coating ofasphalt is applied of a higher melt point than the saturant in which thewear surface is to be embedded. In the new apparatus, however, theunsaturated felt receives the coating of asphalt at once, then the wearsurface is applied, and this coating material is put on in a conditionsuch that itenwe ters intothe pores of the felt to a substantialdistance. The felt used is relatively very thin so that this coating mayreadily seep partly through the felt without difficulty.

After the coating operation, a layer of mastic in more or less fluentcondition is applied to the desired thickness on the face of the feltopposite to that coated. This layer of mastic is of substantialthicknessbut is applied in such condition that the asphaltic component may enterinto the felt. By properly controlling the application of coating andmastic and the fluidity thereof, itis possible to insure that thecoating compound and the plastic ingredient of the mastic, which are thesame and preferably asphalt of the same melting point will extendentirely through the felt and unite to produce complete saturation.After the sheet has received its mastic facing, it is cooled so that themastic receives an initial set. Then a pair of such sheets are placedtogether with their mastic coatings between, and shaping and cuttingoperations are performed to unite the sheets into a single element ofthe desired form and size. In the finished product, the mastic forms thebase, and upon each face is a layer of felted fibres. Through this layerextends the asphaltic compound in a substantially continuous mass fromthe core to the outer layer carrying the wear surface. The felted sheetsforming the jacketare thus fully impregnated and saturated and thisresult is obtained without performing a separate operation for thepurpose.

The apparatus of the present invention includes many features of noveltyin addition to those briefly referred to and will be better understoodupon reference to the accompanying drawings, in which Figs. 1A and 1Btogether illustrate somewhat conventionally the layout in side elevationof the apparatus for producing the new elements;

Fig. 2 is a view in side elevation of modified apparatus for the samepurpose; Figs. 3 and 4 are views in plan and side elevation,respectively, of one of the new elements in the form of a shingle;

Figs. 5 and 6 are views of the thin and butt ends, respectively, of thenew element;

Figs. 7 and F are plan and side views, respectively, of a modified formof the element;

Fig. 9 is a detail of the apparatus;

Fig. 10 is a view in side elevation of a part of a modified form of theapparatus Fig. 11 is a sectional view of a new element;

Fig. 12 is a sectional view illustrating the manner in which the felt isimpregnated;

Fig. 13 is a sectional development view of a part of the shapingapparatus; Fig. 14 is a sectional view of a part of the apparatus shownin Fig. 13; and

Figs. 15 and 16 are sectional views on the lines 15--15 and 1616,respectively, of Fig. 13.

In these drawings, the element 20 is illustrated in Figs. 36, inclusive,in a form appropriate for use as a shingle. This element ward the thickor butt end 21. The element also tapers in thickness from the rear edge23 which is the end normally concealed toward the butt or exposed end21. In a modified form shown in Figs. 7 and 8, the element is ofsubstantially uniform width and thickness from the rear end forward toan imaginary transverse line defining the normal exposure, forward ofwhich the element increases in thickness as indicated at 24, and maydecrease in width. The elements are placed on the roof in the usualcourses and each element lies with its side edges at the rear end incontact with the side edges of an adjacent element.

Each element comprises a mastic core or base 25 (Figs. 11, 12) which ismade up of a mixture of ingredients previously mentioned. The masticillustrated by way of example preferably includes particles of grit 26,termed a mineral aggregate, fibrous material, and a binder or vehicle,preferably asphalt of a suitable melting point. This mastic forms thecore or body of the element, and covering each face and also preferablythe end and side edges is a jacket of felted fibres 27 firmly adherentto the core and provided with a coating 28 of asphalt or the like, inwhich are partially submerged or embedded particles 29 constituting awear surface. Crushed slate is an example of the granular materialfrequently used for such a surface, and this may also be used for theaggregate in the mastic, though there are other mineral materialsequally suitable and somewhat cheaper such as crushed rock, or sand. Inplace of crushed mineral material or in addition thereto, fibrousmaterial, ground cork and the like may also be employed.

The jacket 27 is preferably made in two pieces, the edges of which maymeet without substantial overlap in the-median plane of the element.By-making the jacket in two pieces, the edges of which meet withoutsubstantial overlap, it is possible to produce these elements by acontinuous process using certain rotary elements which performoperations without interrupting the progress of the materials, and atthe same time apply the jacket so that it covers both faces and alledges of the core and completely encloses it.

The jacket material employed may be of different materials, such aspaper of relatively heavy weight, but I prefer to use a light feltproduced of rags and similar materials on a paper machine, such feltconsisting of felted fibres which provide a porous and absorbent layer.The felt used however is not comparable in thickness or weight withfelts used for standard roofing purposes, but is quite is rectangularbut its width may lessen to- The new element is made by a process whichmay be said to involve the application of a coating of asphalt. and wearmaterial to one face of a web of this thin felt, the asphalt beingapplied at a temperature and in amounts such that the asphalt is fluentenough to enter the pores of the felt to a substantial depth. After thewear surface has been applied over this coating, a layer of masticcontaining asphalt of the same melt point as that used in the coating isapplied on the opposite face of the felt to form a layer of considerablethickness. The mastic is applied at a temperature such that the asphalttherein is relatively fluent and enters the pores of the felt to a depthsuch that it completes the impregnation thereof, and unites with theasphalt from the coating so that the felt coated on both sides may bedescribed as made up of a mastic body with an asphalt coating carryinggranular wear material with a thin layer of felted fibres interposedbetween the mass of mastic and the coating layer. Following theapplication of the mastic, the felt is completel impregnated andsaturated and firmly thereto.

To complete the element, two webs of felt treated as above described arebrought into juxtaposition with the mastic layers in contact, thencompression is applied to unite the mastic bodies into a single core andto shape the core and jacket, and simultaneously with the shapingoperation, the felt webs are sevcred around the outlines of the formedcore to complete the product. In the shaping operation, the jacketsheets are forced into contact at the ed es of the shaped core, andsevered along t e line of contact. This produces a completely jacketedcore, without substantial overlap of the jackets, and permits 'theshaping and severing operations to be carried on by rotary molding andcutting rolls, which produce a completely enclosed core.

The apparatus used for manufacturing the material may take differentforms, one convenient and inexpensive type of apparatus being shown inFigs. 1A and 1B. In these figures there are illustrated the two webs ofjacket material 30 and 31, mounted on suitable supports so that the websmay be drawn from them without difiiculty. Each web 32, 33 passes fromits roll through a pair of rolls 34, 35, each roll 34 being providedwith a multiplicity of fine spikes, while the corresponding roll 35 hasa more or less yielding surface of rubber, leather or wood. The feltpassing between these rolls is punctured at a multiplicity of points andeach spike 36 erably asphalt Fi 9) is so shaped that as it passesthrough t elt, it roughens the surface beyond which the s ike pro ects.The rolls 34, 35 are so place that the face of the felt so roughened isthe face to which the mastic is applied. The pro ecting or roughenedparts of the felt then enter the mastic layer and increase the strengthof the bond between the mastic and felt. Also the openings in the feltassist in the saturation of the felt and permit solid.

tongues 28' of asphalt to extend directly therethrou h to meet and unitewith the asphalt coatlng layer.

Beyond theperforating devices, the two webs of felt are brought togetherand pass around a guide roll 37 forming part of a coating mechanismgenerally desi nated 38. Standard apparatus well known 1n the art may beused for this purpose. As illustrated diagrammatically, the two webs offelt, face to face, are led through a vat 39 of coating material beneatha guider'oll 40, and a coating.material a plied to the outer faces andedges. From t e vat, the webs pass through rolls 41, which remove excesscoating material. The coating material which is preffa melt pointsuflicient to withstand solar eatismaintained at a suitable temperaturein the vat, so that the asphalt will flow readily and thus enter the.

pores of the felt to a substantial depth.

From the coater, the webs pass to mechanism generally designated 42, forapplying wear material to the coatings. The details of such'mechanismare well known, though these details have here been modified andutilized in a novel way so that surfacing material is applied toopposite faces of the d uble web. The two webs ,pass beneath a hfipper43 beneath which is a distributing roll 44, and a layer of the surfacegrit is spread evenly over the upper surface of the web 33, this gritbeing partially submerged or embedded in the coating by the roll 45under which the webs pass. This roll may be hollow and water-cooled sothat it gives the coating an initial set at the same time the grit isembedded. The webs now pass around a guide roll 46, so that the web 32is uppermost and grit is applied to it by the distribut ing. roll 47receiving grit from the hopper 48. The web now passes around the roll 49similar to the roll 45, which embeds the grit and sets the coating. Thewebs then pass to the mechanism for applying the mastic.

This mechanism generally designated 50 includes a pair of rolls 51, 51placed with their surfaces close together, and the webs 32, 33 passupwardly between these rolls and are then separated. A supply of themastic 52 is maintained in the bight of the rolls and kept in place bysuitable end plates, not shown. As the webs separate and pass one aroundeach roll 51, the uncoated faces of the webs come in contact with therelatively fluent mastic and .pick up a layer thereof. Placed to oneside and above each roll 51, is a roll 53, 53 journalled in bearingswhich are adjustable with respect to the bearings for I the rolls 51 sothat the distance between the surfaces of roll 51 and roll 53, 53 may bevaried. Each web is led around the surface of a roll 51, picking up acoating of mastic, then between the roll 51 and its associated roll 53or 53. The distance between the surface of roll 51 and roll 53, forexample, determines the thickness of the layer of mastic carriedofi'bythe web 32, excess mastic being returned to the supply 52. The web 33passes over its roll 51, thenbetween that roll and roll 53, whereby thethickness of the mastic layer is determined, then around that roll to anupper guide roll 54.

The various rolls 51, 53, 53 and 54 are hollow and arranged so that theymay be heated or cooled as may be necessary, and the supply of mastic 52is kept at a temperature such that the asphaltic ingredient issufiiciently fluent so that it will penetrate the roughened surface ofthe felt and complete the saturation thereof. Also such of these andother rolls in the apparatus as may be necessary, are driven to causethe felt to advance from its supply through the machine. As the coatingasphalt and that in the mastic are preferably the same, they unite inthe felt so that there is a substantially continuous asphaltic massextending through the felted fibres from one face to the other.

From the mastic applying mechanism, the two webs of felt are moved tocooling devices, taking the form of rolls 55, around which the two websare led in a tortuous path. These rolls may be water-cooled so that thecoating and the mastic will set partially. These rolls are used to thenumber desired or necessary to put the coated webs in suitable conditionto be combined into building products.

The mechanism used for this purpose is similar to that set forth anddescribed in my co-pending application, Serial No. 139,612, filedOctober 5, 1926. That mechanism includes a pair of rotary drums 56,having mold cavities 57 in their surfaces. The webs 32, 33 are broughttogether and pass between the rolls with their mastic layers in contact.The rolls are so shaped that they exert a pressure which consolidatesthe two mastic layers into a single core of final form, and the jacketwebs conform to the shape of this core. Around their edges the moldcavities 57 have sharp edges which pinch the webs and sever them, sothat the molding rolls not only form the single elements but cut thewebs around the outlines of each element. The drums 56 thus rotatecontinuously and uniformly and produce finished elements 58 withoutinterruption to the movement of the webs. Each element includes a bodyor core of mastic, which is completely encased in a jacket, and

by reason of the choice of a two piece jacket, the edges of which meetin a plane without substantial overlap, the rotary forming operation ispossible, resulting in a high output rate at low cost.

In Fig. 2, there is illustrated a somewhat more compact form of theapparatus. Here the coated webs 32, 33 pass beneathapparatus 59 forapplying grit to the upper web 33, then to apparatus 60 for applyinggrit to the under surface. The grit is embedded in each coating by thepassage of the webs between rolls 51 after which the webs are separatedand receive the coating of mastic from supply 52. The coated webs nowpass directly to the molding drums 56, and the web 32 is guided theretoby roll 53, while web 33 passes around roll 53, guide roll 54 and afloating roll 61to the drums. The action of the drums may cause masticto collect in their bight at 62 if excess above that required is carriedby the webs. The roll 61 is therefore mounted to float and if masticcollects at 62 in too great amount, itwill lift the roll 61 and bevolving the use of two groups of rolls 63 and 64, arranged three high.Each group of rolls is supplied with mastic in any convenient manner,for instance, by placing a container for mastic adjacent each group, oneside of each container being defined by the rolls. For this purpose, apair of downwardly diverging partitions 65 may be used as indicatedprovided with end plates not shown, and holding quantities of mastic 66in contact with the surfaces of the two lower rolls of each group. Theweb 33 is laid between the two upper rolls of the group 63. The middleroll 67 of this group is spaced from the lower roll and is driven at a.higher speed than the top and bottom rolls. The roll 67 picks up a layerof mastic from the supply 66 and carries this layer around in contactwith the web 33, spreading the mastic on that web with a Wiping motionas the roll re- 'volves. will depend upon the spacing of the middle rollfrom the top roll and bottom roll. The rolls are journaled in bearingscapable of adjustment, so that the thickness of the mastic layer appliedto the web can be varied as desired. The coated web passes around thetop roll of the group 63 and then around a roll 68 and from there is leddirectly to the forming rolls 56, or it may pass around cooling rolls 55as desired.

The web 32 passes around a guide roll 69 and then upwardly between themiddle roll and the top roll of the group 64. The rolls of this groupare arranged in the same manner and perform the same function as therolls in the group 63, and, from the top roll of this group, the coatedweb passes either The amount of mastic so applied directly to theforming rolls 56', or to cooling rolls 55. It will be noted that masticis applied to the under surface of the web 33 and to the upper surfaceof the web 32 by the wiping action of the rolls 67 l It will be seenthat the new product can be produced rapidly according to the processdescribed, and the apparatus required is of simple construction and lowcost. Apparatus such as thatillustrated in Figs. 1A and 1B will occupyfloor space not greatly in excessof 60 feet long and of width not muchgreater than the units to be produced, whereas standard roofingequipment of the type now generally used is over 100 feet long andincludes numerous expensive parts. ince the present product utilizesunsaturated felt,

and the felt is saturated as an incident to a other operations, theusual saturating equipment is dispensed with, thus reducing the cost andsaving space.

While the new product has been illustrated in the form of a singleshingle, it may be produced in the form of strip shingles by usingmolding drums of ap ropriate form as illustrated in my co-pen ingapplication above referred to. It may also be produced withoutdifliculty in numerous other forms for special purposes.

In Fig. 12, I have illustrated a part of the new element in section andon an enlar ed scale. The felt jacket 27 is shown as lying between themastic 25 on one side and the coating layer 28 on the other and due' tothe porosity of the felt and its perforation, the asphalt in mastic andcoating has united so that the felt is completely impregnatedand thecore and coating form an integral unit. This effect is increased by thetongues 28' of asphalt which extend through the perforations between thecoating and core. Accordingly, the new element in final form includes acore, a jacket completely encasing the core, and a waterproof coatingwith wear material on the jacket and this product has been producedwithout starting with a saturated felt and without performing specialsaturating steps. a

The present invention afi'ords numerous advantages over the products,processes, and apparatus heretofore used, among which are the following:

By using unsaturated felt the cost of the final product is cut down andthis reduction in cost is an important one, since the felt employed isthin and of light weight. The production cost is also re uced since thematerial is converted from unsaturated felt to finished shingles in whatamounts to a single continuous operation, there being no interruption inthe travel of the felt through the apparatus. In the new process, thefelt and mastic are at practically the same temperature when acted on bythe forming 'and/ shaping rolls and since the felt is warm it may beappropriately shaped by these rolls without injury to the felt andwithout cracking the sealing coating in which the wear material isembedded. This wear material is also firmly aflixed to the felt since itpasses through two sets of rolls which act upon it and embed it in thesealing coating. The application of the mastic to the felt itself in alayer ofregulated thickness insures a uniform supply of mastic to theforming rolls where the core is shaped to final form, and the mastic atthe time it reaches these forming rolls has been subjected to a partialcompression to eliminate voids so that the final pressing operationresults in products of the highest grade. Also, by reason of the use ofunsaturated felt, on one face of which mastic is applied, the binder inthe mastic is forced into the fibres of the felt and unites with thesealing coating, both the mastic and sealin coating being warm at thetime of the fina forming operation, and this prevents any separation ordelamination of the felt from the core.

The new product is relatively cheap and it may be made in shingles andbuilding products of any shape and form. Shingles made by the newprocedure are particularly desira le since they may have the thick butt,sodesirable in roofing products, and not obtained with the ordinarycommercial roofmg. The thickness of the butt does not increase the costto any substantial extent, since the body of the new shingle is made ofa relatively inexpensive mastic and the amount of felt or acketingmaterial used does not vary substantially whether the products are thickor thin.

While I have described the method of utilizing the unsaturated felt in aproduct in which the core is completely encased by the jacket, it willbe apparent that the same method may also be used to advantage in theproduction of jacketed elements of other types such as those shown in myPatent No. 1,585,692, issued May 25, 1926.

at I claim is:

1. Apparatus for the production of products for building and similarpurposes, which comprises means for placing a web in lon tundinalmovement, a coating mechanism r applying sealing material to one face ofthe we means for applying a layer of mastic material of selectedthickness to the other face of the web, means operatively inter osedbetween the coating mechanism and the layer-applying means for coolingto a preselected temperature the web and the material carried thereby,and means for applying pressure to the opposite faces of the web toforce the coating and wipe the mastic into the web to a substantialdepth.

2. Apparatus for the manufacture of products for building and similarpurposes, which comprises the combination of means for applying to oneface of a moving web a coating of sealing material in relatively fluentcondition, means for applying mastic in relatively fluent condition tothe other face of the web, to form a layer of selected thickness, meansoperatively interposed between the coating-applying means and themastic-applying means for cooling the web and material carried thereby,and a mechanism for subjecting the coated web to pressure to force themastic and coating into the web to bring about its substantiallycomplete impregnation thereby.

3. Apparatus for the manufacture of products for building and similarpurposes, which comprises the combination of means for applying coatingmaterial to one face of a web, this coating material being in relativelyfluent condition, means for applying a mastic including a relativelyfluent ingredient to the other face of the web to form a layer ofselected thickness, means operatively interposed between thecoating-applying means and the mastic-applying means for cooling to apreselected temperature the web and material carried thereby, and apressure mechanism for subjecting the coated web to pressure to forcethe coating and fluent ingredient of the mastic into the web asubstantial distance.

4. Apparatus for the manufacture of products for building and otherpurposes, which comprises the combination of means for roughening onesurface of a web of fibrous material, means for applying a sealingcompound to the other face of the web, this sealing compound being inrelatively fluent condition, means for applying a layer of masticincluding a relatively fluent ingredient to the roughened face of theweb to form a layer of selected thickness, means operatively interposedbetween the sealing compound-applying means and the masticlayer-applying means and adapted to cool to a preselected temperaturethe web and material carried thereby, and pressure devices operable tosubject the coated web to pres sure to force the fluent ingredient ofthe mastic and the sealing coating into the web to effect impregnationthereof.

5. Apparatus for the manufacture of products for building and similarpurposes, which comprises the combination of means for perforating afibrous web and at the same time roughening one surface thereof, coatingmechanism for applying a sealing coating in relatively fluent conditionto the smooth surface of the web, means for applying a layer of masticincluding a fluent ingredient to the roughened surface of the web toform a layer of selected thickness, and means for subjecting the coatedweb to pressure to force the sealing coating and the fluent in,-gredient of-the mastic into the web to impregnate the latter.

6. Apparatus for the manufacture of products for building and similarpurposes, which .to unite and to shape the webs and mastic to apredetermined shape.

7. Apparatus for the manufacture of products for building and similarpurposes, which comprises the combination of means for placing a pair ofwebs with one face of each in contact and means for applying a coatingmaterial to the exposed face of each web, means for separating the websand applying a layer of mastic material of regulated thickness to theuncoated face of each web, means operatively interposed between thecoatingapplying means and the mastic material-applying means adapted forcooling the web and material carried thereby to a preselectedtemperature, and means for placing the webs together with their masticcoated faces in contact and subjecting the webs and mastic to pressureto cause the mastic layers to unite and to form the webs and mastic to apredetermined form.

8. Apparatus for the manufacture of products for building and similarpurposes, which comprises the combination of means for moving a pair ofwebs with one face of each in contact through a supply of sealingmaterial to cause the exposed face of each web to receive a coatingthereof, means for separating the webs and applying mastic including arelatively fluent ingredient to the uncoated face of each web to form alayer of regulated thickness, means operatively interposed between thesealing material-applying means and the mastic-applying means andadapted for cooling to a preselected temperature the respective Webs andmaterial carried thereby, means for bringing the webs together withtheir mastic layers in contact, and means for compressing the webs andmastic to consolidate the mastic into a single mass, to shape the websand mastic to a predetermined form and to sever the webs along theoutlines of said form.

9. Apparatus for the manufacture of products for building and similarpurposes, which comprises the combination of means for applying a layerof mastic to one face of each of a pair of webs, means for cooling themastic to give it an initial set, and means for placing the webs withtheir mastic layers in contact and for applying pressure to the webs toconsolidate them and the mastic carto unite the webs.

11. Apparatus for the manufacture of products for building and similarpurposes, which comprises the combination of separate rotary meansoperating on each of a pair of webs for applying a layer of mastic toone face of each web with a wiping motion, and

means acting on the coated webs to bring their mastic layersdnto contactand to shape the webs and mastic to a selected. for

12. Apparatus for the manufacture of products for building and similarpurposes which comprises the combination of means for directing acontinuous web of fibrous material at a uniform rate in a predeterminedpath, means for uniformly perforating the web, means for coating oneside of the web with material in liquid form, means for bringing thethus-coated Web to a preselected temperature, pressure-applying meansfor applying with a wipmg motion a relatively thick layer of mastic tothe side of the web oppositethat having the said coating and for forcingportions of the mastic into the fibers of the web and through theperforations therein, and means for cooling the thus-coated web.

13. Apparatus for the manufacture of products for building and similarpurposes which comprises the combination of means for directing acontinuous web of fibrous material at a uniform rate in a predeterminedpath, means for uniformly perforating the web, means for coating oneside of the'web with material in liquid form, pressure applying meansfor applying with a wiping motion a relatively thick layer of mastic tothe side of the web opposite that having the said coating and forforcing portions of the mastic into the fibers of the web and throughthe perforations therein, and means for cooling the thus-coated web.

14:. Apparatus for the manufacture of products for building and similarpurposes,

which comprises the combination of means means operatively interposedbetween the web coating means and the mastic-applying means and adaptedfor cooling to a preselected temperature each web and the materialcarried thereby, means for superposing one of the webs upon'the otherwith the respective mastic layers in contact, the lastnamed means havingoperatively associated and therewith means'for compressing thewebs andmastic to consolidate the mastic into a single mass of preselectedthickness and form, and means for severing the respective webs along theoutlines of the said form.

15. Apparatus for the manufacture of products for building and'similarpurposes, which comprises the combination of means for directing a pairof continuous webs of fibrous material, each having one face thereof incontact with a face of the other web, through a supply of liquid sealingmaterial thereby coating the exposed face of each web with the sealingmaterial, means for separating the thus-coated webs, means for applyingto the uncoated face of each web a layer of mastic material of regulatedthickness including a normally liquid ingredient, means operativelyinterposed between the web-coating means and the mastic-applying meansfor cooling to a preselected temperature each Web and the materialcarried thereby, and rotary molding and cutting rolls adapted tosimultaneously bring the respective webs together with their masticlayers in contact to shape the webs and the inner mastic core to apreselected form and size, and to sever the same along the outlines ofthe said form.

In testimony whereof I aflix my signature.

THOMAS ROBINSON.

